These changes will affect services late at night from Monday to Friday.
We have broken down the details so you can plan ahead this week.
Engineering work is taking place on various parts of the Southeastern network, closing some lines late at night until the end of service.
Tuesday, Wednesday and Thursday (October 14 to October 16):
From 11.55pm until the end of service, trains towards Orpington and Sevenoaks will not stop at Lewisham.
Passengers travelling from Lewisham should change at Hither Green for services to Orpington and Sevenoaks.
A replacement bus will also depart Lewisham at 1.08am calling at all stations to Orpington.
Monday to Thursday (October 13 to October 17):
From 11.35pm on Monday, Tuesday and Thursday, and from 12.45am on Thursday morning until the end of service, buses will replace trains between Maidstone East and Ashford International.
The 10.25pm London Victoria to Ashford International service on Monday, Tuesday and Thursday will be diverted between Otford and Ashford International to run via Sevenoaks.
Passengers should change at Otford for a connecting train to Maidstone East, and then continue by replacement bus to Ashford International.
On Wednesday only, this train will run normally via Maidstone East.
The 10.29pm London Charing Cross to Ashford International service on Monday, Tuesday and Thursday will run only between London Charing Cross and Maidstone East.
On Wednesday only, this train will run normally to Ashford International via Maidstone East.
The 11.25pm London Victoria to Ashford International service will be diverted between Otford and Ashford International to run via Sevenoaks.
Passengers should change at Otford for a connecting train to Maidstone East and then continue by replacement bus to Ashford International.
The 12.25am London Victoria to Ashford International service from Wednesday to Friday will run at a later time than usual and only operate between London Victoria and Maidstone East.
Trains between London Charing Cross and London Cannon Street and Maidstone East will stop additionally at Kemsing, East Malling and Barming.
From 11.55pm until the end of service, accessible buses replace trains between Beckenham Junction and Orpington calling at all stations.
Monday, Wednesday and Thursday (October 13, October 15 and October 16):
From 11.20pm until the end of service, accessible buses replace trains between Sittingbourne and Sheerness-on-Sea.
The 11.20pm and 11.50pm London St Pancras International to Faversham services will be replaced by accessible buses between Ebbsfleet International and Gillingham calling at all stations except Higham, and between Gillingham and Faversham calling at Rainham and Sittingbourne.
Tuesday only (October 14):
From 11.40pm until the end of service, accessible buses replace trains between Tunbridge Wells and Hastings.
Services will run between Tunbridge Wells and Hastings calling at Wadhurst, Battle, West St Leonards and St Leonards Warrior Square, between Tunbridge Wells and Robertsbridge calling at all stations, and between Battle and Crowhurst using a mini bus shuttle.
